…nd marks other duplicated code (elastic#105374)

## Summary

* Removes dead duplicated code from `security_solution` and  `lists`
* Adds notes and TODO's where we still have duplicated logic
* Adds notes where I saw that the original deviated from the copy from modifications in one file but not the other.
* DOES NOT fix the bugs existing in one copy but not the other. That should be done when the copied chunks are collapsed into a package. Instead see this issue where I marked those areas: elastic#105378

See these two files where things have deviated from our duplications as an example:
[security_solution/public/common/components/autocomplete/field.tsx](https://github.com/elastic/kibana/blob/master/x-pack/plugins/security_solution/public/common/components/autocomplete/field.tsx
)
[lists/public/exceptions/components/autocomplete/field.tsx](https://github.com/elastic/kibana/blob/master/x-pack/plugins/lists/public/exceptions/components/autocomplete/field.tsx)

Ref PR where fixes are applied to one of the files but not the other (could be other PR's in addition to this one):
elastic#87004

### Checklist

Delete any items that are not applicable to this PR.

- [x] [Unit or functional tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html) were updated or added to match the most common scenarios